https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68488
Bug ID: 68488
Summary: [6 Regression] internal compiler error: in
expand_insn, at optabs.c:6947
Product: gcc
Version: 6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
Assignee: unassigned at gcc dot gnu.org
Reporter: hjl.tools at gmail dot com
CC: rsandifo at gcc dot gnu.org
Target Milestone: ---
On x86-64, r230487 failed to build 189.lucas in SPEC CPU 2000:
gfortran -O2 -ffast-math -fwhole-program -flto=jobserver
-fuse-linker-plugin -DSPEC_CPU2000_LP64 lucas_distrib_spec.o -o lucas
lucas_distrib_spec.f90: In function 'lucas_distrib':
lucas_distrib_spec.f90:378:0: internal compiler error: in expand_insn, at
optabs.c:6947
err_abs=4*dnint(sqrt(1d0*n))
0x9321e3 expand_insn(insn_code, unsigned int, expand_operand*)
../../src-trunk/gcc/optabs.c:6947
0x80c2b4 expand_direct_optab_fn
../../src-trunk/gcc/internal-fn.c:2124
0x62d00a expand_call_stmt
../../src-trunk/gcc/cfgexpand.c:2565
0x62d00a expand_gimple_stmt_1
../../src-trunk/gcc/cfgexpand.c:3525
0x62d00a expand_gimple_stmt
../../src-trunk/gcc/cfgexpand.c:3688
0x62fbca expand_gimple_basic_block
../../src-trunk/gcc/cfgexpand.c:5694
0x635486 execute
../../src-trunk/gcc/cfgexpand.c:6309
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.
make[4]: *** [/tmp/ccRUTyPS.ltrans1.ltrans.o] Error 1
lto-wrapper: fatal error: make returned 2 exit status
compilation terminated.
/usr/local/bin/ld: error: lto-wrapper failed
collect2: error: ld returned 1 exit status
